Smart exercise bike computer. Part #7: Integration of the LCD

RE: Smart exercise bike computer. Part #7: Integration of the LCD

three-phase — Thu, 28 Jun 2018 20:48:40 GMT

Good to see the progress being made, hopefully the parts will arrive soon.

kind regards

RE: Smart exercise bike computer. Part #7: Integration of the LCD

mcb1 — Thu, 28 Jun 2018 10:51:20 GMT

[mention:bcf467be9bf04982b313a2229455ef3a:e9ed411860ed4f2ba0265705b8793d05]

The white on blue LCD's are much slower than the Black on Greenish LCD's.

I suspect that to get white they make the crystal transparent, while the other the black pixel is simply blocking, and hence there is a speed difference.

I have tried it with scrolling text using exactly the same Arduino and setup and just swapping the displays.

Arduino, Temperature, LCD and more

Line 105 is the scroll delay period, and for the White on Blue it needs to be increased to stop the ghosting.

I've seen various libraries that claim to make LCD's quicker, but I haven't experimented to see if they are or not.

Mark

RE: Smart exercise bike computer. Part #7: Integration of the LCD

aspork42 — Sat, 23 Jun 2018 01:55:37 GMT

Nice update - It is starting to look real!

Are you going to make it bilingual? You can have a switch on the side to make it come up in Cyrillic... If the LCD driver can support the character set. I've had to make custom characters on the fly before and that gets to be a lot of work (and code!)

RE: Smart exercise bike computer. Part #7: Integration of the LCD

genebren — Fri, 22 Jun 2018 14:00:07 GMT

Another nice update on your design challenge project. I hope that you are able to get your WiFi board in time to send the data to your phone. I have not experience using this particular controller/display, but I have seen similar effects on others. They typically do not offer super fast updates, so there are usually some flicker/ghosting on updates.

Good luck in your continuing efforts to complete this challenge!

Gene